Video Resource Requirements And Implications - Polycom RealPresence RMX 1500 Administrator's Manual

Video Resource Requirements and Implications

Lync 2013 SVC clients may not all connect to a VMR with the same stream layout. They are therefore
considered H.264 AVC participants and transcoding resources are allocated to them as summarized in the
following table.
Bandwidth and Resource Consumption by Video Codec
Video Codec Resolution and Aspect
Ratio
H.264 320x180 (16:9)
Coded as 320x192
212x160 (4:3)
H.264/RTVideo 424x240 (16:9)
Coded as 432x240
320x240 (4:3)
H.264 480x270 (16:9)
Coded as 480x272
424x320 (4:3)
Coded as 432x320
H.264/RTVideo 640x360 (16:9)
Coded as 640:368
640x480 (4:3)
H.264 848x480 (16:9)
H.264 960x540 (16:9)
Coded as 960:544
H.264/RTV 1280x720 (16:9)
H.264 1920x1080 (16:9)
Support for HD1080p Resolution
The Collaboration Server Hosted deployment supports HD1080p30 video resolution symmetrically for direct
calls.
The MS AV MCU Cascade deployment supports HD1080p30 video resolution only if
is selected and according to the settings of the LYNC_AVMCU_1080p30_ENCODE _RESOLUTION
System Flag:
NO (Default) Video streams sent to and received from the MS AV MCU are HD720p30, SD, and CIF.
YES Video streams sent to the MS AV MCU are HD1080p30, SD, CIF. Video streams received from
the MS AV MCU are 720p30,SD, and CIF.
Polycom®, Inc.
Appendix H - Deployment Into Microsoft Environments
Maximum Video Minimum Video
Payload Bit rate Payload Bit rate
(Kbps) (Kbps)
250 15
350 100
450 200
800 300
1500 400
2000 500
2500 700
4000 1500
Resources
CIF
CIF
SD
SD
SD
SD
HD720p30
HD1080p30
mode
Video Optimized
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